GB658487A - Improvements in or relating to electric safety lamp - Google Patents
Improvements in or relating to electric safety lampInfo
- Publication number
- GB658487A GB658487A GB2920949A GB2920949A GB658487A GB 658487 A GB658487 A GB 658487A GB 2920949 A GB2920949 A GB 2920949A GB 2920949 A GB2920949 A GB 2920949A GB 658487 A GB658487 A GB 658487A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hood
- lamp
- handle
- electric safety
- relating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L14/00—Electric lighting devices without a self-contained power source, e.g. for mains connection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Abstract
658,487. Safety lamps. PERSSON, F. R. Nov. 15, 1949, No. 29209. [Class 75(iv)] In an electric safety lamp having two spaced protective hoods 10, 11 the inner hood 10 is made of glass and the outer hood 11 is made of synthetic plastic. The outer plastic hood is either transparent or translucent and is spaced not less than five millimeters from the inner hood which is frosted. The outer hood is provided with a. threaded collar 14 for securing it to the body 6 of the lamp and with an internal shoulder 12 for clamping a flange 9 on the inner hood to the lamp body. Washers 8, 15 seal the joints. The lamp body 6 is made of heat resisting material such as asbestos-filled phenol formaldehyde condensation product and is of elongated shape to serve as a handle. The electric leads pass through the handle to the lamp socket 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2920949A GB658487A (en) | 1949-11-15 | 1949-11-15 | Improvements in or relating to electric safety lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2920949A GB658487A (en) | 1949-11-15 | 1949-11-15 | Improvements in or relating to electric safety lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
GB658487A true GB658487A (en) | 1951-10-10 |
Family
ID=10287877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2920949A Expired GB658487A (en) | 1949-11-15 | 1949-11-15 | Improvements in or relating to electric safety lamp |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB658487A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE954274C (en) * | 1953-07-15 | 1956-12-13 | Kaiser & Spelsberg | Moisture-proof luminaire |
US2874270A (en) * | 1959-02-17 | Portable work light |
-
1949
- 1949-11-15 GB GB2920949A patent/GB658487A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2874270A (en) * | 1959-02-17 | Portable work light | ||
DE954274C (en) * | 1953-07-15 | 1956-12-13 | Kaiser & Spelsberg | Moisture-proof luminaire |
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